#include<bits/stdc++.h>
#define ONLINE_JUDGE
#define ll long long
#define ull unsigned long long
using namespace std;

const ll N = 1e6 + 10, INF = 0x3f3f3f3f;

ll n, x, a, b;

int gcd(int a, int b)
{
    return b ? gcd(b, a % b) : a;
}
void solve()
{
    cin >> n;
    while (n--) {
        int x, y;
        cin >> x >> y;
        if (x > y) swap(x, y);
        cout << 1 << " " << x * y / gcd(x, y) / gcd(x, y) << endl;
    }
    
}

signed main()
{
    // ios::sync_with_stdio(0);
    // cin.tie(0);cout.tie(0);
#ifndef ONLINE_JUDGE
    std::istringstream in(R"()");
    std::cin.rdbuf(in.rdbuf());
#endif
    ll T = 1;
    cin >> T;
    for (ll i = 1;i <= T;i++) {
        solve();
    }
}